134728810807928 has 8 divisors (see below), whose sum is σ = 252616520264880. Its totient is φ = 67364405403960.

The previous prime is 134728810807879. The next prime is 134728810807933. The reversal of 134728810807928 is 829708018827431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8420550675488 + ... + 8420550675503.

It is an arithmetic number, because the mean of its divisors is an integer number (31577065033110).

Almost surely, 2^{134728810807928} is an apocalyptic number.

It is an amenable number.

134728810807928 is a deficient number, since it is larger than the sum of its proper divisors (117887709456952).

134728810807928 is a wasteful number, since it uses less digits than its factorization.

134728810807928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16841101350997 (or 16841101350993 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 68.

The spelling of 134728810807928 in words is "one hundred thirty-four trillion, seven hundred twenty-eight billion, eight hundred ten million, eight hundred seven thousand, nine hundred twenty-eight".